Defensive publication

ABSTRACT

ARE SENSITIZERS FOR PHOTOCONDUCTORS WHEREIN R1, R2, R3, AND R4 MAY REPRESENT SEPARATE MOIETIES; WHEREIN R1 AND R2 MAY BE TAKEN TOGETHER TO COMPLETE A FUSED AROMATIC RING; WHEREIN A REPRESENTS A HETERO ATOM, E.G. OXYGEN OR SULFUR; AND WHEREIN B REPRESENTS A RADICAL HAVING THE FORMULA (CH2)N-1 WHEREIN N REPRESENTS A POSITIVE INTEGERHAVING A VALUE OF FROM 2 TO 9.   COMPOUNDS HAVING THE FORMULA:

DEFENSIVE PUBLICATION UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Dec. 16, 1969, 869 0.8. 687. The abstracts of Defensive Publication applications are identified by distinctly numbered series and are arranged chronologically. The heading of each abstract indicates the number of pages of specification. including claims and sheets or drawings contained in the application as originally flied. The files of these applications are available to the public for inspection and reproduction may be purchased for 30 cents a sheet.

Defensive Publication applications have not been examined as to the merits of alleged invention. The Patent Oflice makes no assertion as to the novelty of the disclosed subject matter.

PUBLISHED AUGUST 31, 1971 T889,022 ELECTROPHOTOGRAPHIC COMPOSITION AND ELEMENT George A. Reynolds and James A. Van Allan, Kodak Park Works, Rochester, N.Y. 14650 Filed Oct. 5, 1970, Ser. No. 78,612 Int. Cl. G03g 5/06 US. Cl. 96--1.5 No Drawing. 13 Pages Specification Compounds having the formula:

are sensitizers for photoconductors wherein R R R and R may represent separate moieties; wherein R and R may be taken together to complete a fused aromatic ring; wherein A represents a hetero atom, e.g. oxygen or sulfur; and wherein B represents a radical having the formula {CH I wherein n represents a positive integer having a value of from 2 to 9. 

